TY  - BOOK
AU  - Bilal, Muhammad (171054); Bilal, M. Moshin (171022)
TI  - Managing the internet service quality of PTCL
U1  - 658 BIL-BS 
PY  - 2017///
CY  - Islamabad
PB  - Air University School of Management (AUSOM) Air University Main Campus
ER  -